Home / 154,321.09-231,503.15-47,713.75

Finding the Fourth Proportional to 154,321.09, 231,503.15 and 47,713.75

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Solution

The fourth proportional to 154,321.09, 231,503.15 and 47,713.75 is: 71,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,321.09 : 231,503.15 = 47,713.75 : x
  2. Step 2: Convert to fraction form
    154,321.09/231,503.15 = 47,713.75/x
  3. Step 3: Cross multiply
    154,321.09x = 231,503.15 × 47,713.75
  4. Step 4: Simplify right side
    154,321.09x = 11,045,883,423.31
  5. Step 5: Solve for x
    x = 11,045,883,423.31/154,321.09
  6. Step 6: Final answer
    x = 71,577.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.